(redirected from soundproof)
Also found in: Dictionary, Thesaurus, Medical, Legal, Acronyms, Wikipedia.




The application of sound-deadening material to walls, ceilings and floors to prevent sound from passing through into other areas.



(of exterior structures of buildings), the attenuation of sound as it penetrates the exterior of buildings; in the broader sense, the aggregate of measures taken to reduce the level of noise entering a room from the outside. The quantitative measurement of soundproofing, expressed in decibels (dB), is called the soundproofing coefficient.

A distinction is made between soundproofing against air-borne sounds and against sounds caused by impacts. Airborne soundproofing insulation is marked by reduction in the level of the sound (for example, speech, singing, or radio programs) when it passes through an enclosure; it is evaluated by the frequency response over the range from 100 to 3,200 hertz, taking into account the sound absorption of the premises being soundproofed. Soundproofing against impacts (people’s footsteps, moving furniture, and so on) is a function of the sound level produced under the floor and is evaluated by the frequency response of the normalized sound pressure level produced in the same frequency range when a standard impact machine is operating on the floor, also taking into account the sound absorption of the premises.

The inner walls and partitions of buildings should have a standard soundproofing coefficient for airborne sound; the floors between stories should have a standard coefficient for both airborne and impact sounds. To increase the soundproofing coefficient of the walls between apartments, as well as to reduce their weight, sectional structures with a continuous airspace or laminated structures made from separate layers of materials whose physical properties differ sharply are used instead of homogeneous structures, which consist of a single material or several rigidly joined layers of different materials (for example, a plastered brick wall).

The soundproofing of walls that have windows or doors is determined in practical terms by the sound insulation of the openings, which is usually less than that of the blank walls of the enclosure. The use of floors of the sectional type, with a continuous airspace, or with suspended ceilings, is expedient in improving their soundproofing qualities or in reducing their weight without affecting the level of soundproofing. Insulation of homogeneous floors against impact noise is improved by using floors with an elastic foundation or individual pads made of elastic materials. Flooring made of soft roll-type materials, which may have a thermally insulating or soundproofing base, is also recommended. The elastic pads under floors can be made of rock or glass wool or wood fiberboard.

The quality of the construction and assembly work is of great importance in providing the required soundproofing; even very minor cracks, holes, and fissures in structures will drastically reduce their soundproofing properties. In the planning of buildings, consideration should be given to the fact that the proper arrangement of a building, reduction of the noise from plumbing and engineering equipment, and rational design of the enclosures should also provide for insulation of edifices from internal and external noise. The greatest technological and economic effect is attained by the composite protection of buildings from noise.


Zaborov, V. I. Teoriia zvukoizoliatsii ograzhdaiushchikh konstruktsii. Moscow, 1969.
Nikol’skii, V. N., and V. I. Zaborov. Zvukoizoliatsiia krupnopanel’ nykh zdanii. Moscow, 1964.



The elements of construction and the design features of a building which make it relatively impervious to sound transmission from one room to another or from outside the building to the inside.
References in periodicals archive ?
The THX Certified QuietHome Door and QuietRock[R] soundproof drywall provide designers and architects a means to meet the sound isolation demands of commercial cinemas, recording studios and home theaters.
QuietRock soundproof drywall provides an easy, reliable way to build walls with superior soundproofing performance at the lowest total cost.
Due to rising demand, MS Noise now offers soundproof enclosures for not only vacuum pumps, but also for water chillers, ultrasonic baths, nitrogen generators and more.
Serious Materials announced it has entered into an agreement with CertainTeed, North America's leading manufacturer of interior and exterior building products, to be the exclusive distributor of QuietRock[R] soundproof drywall in Canada.
The Appellate Division held that plaintiff's measure of damages should include the costs of her attempt to soundproof the studio, her costs in finding new suitable accommodations, some of her carrying charges on the loft until she was able to sublet it, and the Appellate Division remanded the case back to the trial judge to determine those damages and also to entertain any additional theories of recovery for the plaintiff.
Quiet Solution, the market and technology leader in soundproof drywall, today announced its new QuietPad 420 floor underlayment for impact noise reduction in high-rise concrete construction.
While our earlier products provide no RF shielding, we developed the new RF product line to make RF and soundproof SCIF room construction more affordable than earlier methods.
The third and seventh floors of the building will have soundproof walls, allowing for private rehearsal spaces for music students and their instructors.
Quiet Solution, the market and technology leader in soundproof drywall, today announced that its revolutionary QuietHome[R] sound-damped floor/ceiling assembly has been awarded UL assembly number L591.
90 Pieces soundproof doors with frame, Rw = 32 dB req, various sizes 89 x 213-230 x 260 cm: - Approx.
Continues #1 Leadership Position in Soundproof Drywall
Contract notice: Supply and installation of soundproof windows-wood" for range 2 west of highway 9